MAN. PS 254 EN – Ind. 2 14 bis
Input voltage taps
Do not consider this paragraph if the PS 254
has to be connected in 400 V only.
In the case of a PS 254 fitted out with the
multivoltage kit, the input power jumpers must
be set correctly before it is switched on. The
input power of the power source is 500 V when
it is delivered to you.
Coupling is made on the terminal connection of
the power transformer. Unscrew the four
shackles on the top of the power source and
remove the roof in order to get access. Before
proceeding on any electrical part, make sure
the machine is not connected to the electrical
mains supply.
The power transformer being three-phase,
coupling has to be made in these three
different points.
Fig. 2.4 : Input voltage taps
The value of the mains voltage is beyond
standards.
The PS 254 is designed to work with a mains
voltage which can fluctuate by ± 10 % from the
nominal value. If the mains voltage of your
equipment is not comprised within this range,
you can intervene. In the connection terminal
situated near the transformer,move the "U"
wire to the “+” terminal if your voltage is too
high or to the “-“ terminal if it is too low.
Refer to the following table to know the
acceptable variations depending on
connections and nominal voltage (Un).
MAXIMUM
CONNECTION
MAXIMUM
VOLTAGE
MINIMUM
VOLTAGE
U Un + 10 % Un – 10%
- Un + 5 % Un – 15 %
+ Un + 20 % Un
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